This listing is for a Auxiliary Water Pump for 2008-2019 BMW 550i 650i 750i Alpina B7 X5 X6 xDrive 2.0L 3.0L 4.4L 6.0L. this part replaces number 11-51-7-566-335. This is a new pump that has never been used. Upon purchasing, this item will be shipped the same day or the following business day.